NAME

       d.northarrow  - Displays a north arrow on the graphics monitor.

KEYWORDS

       display, cartography

SYNOPSIS

       d.northarrow
       d.northarrow --help
       d.northarrow   [-twr]    [style=string]     [at=x,y]    [rotation=float]    [label=string]
       [color=name]   [fill_color=name]    [text_color=name]    [width=float]    [fontsize=float]
       [--help]  [--verbose]  [--quiet]  [--ui]

   Flags:
       -t
           Draw the symbol without text

       -w
           Do not rotate text with symbol

       -r
           Use radians instead of degrees for rotation

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       style=string
           North arrow style
           Options:  1a,  1b,  2,  3,  4,  5, 6, 7a, 7b, 8a, 8b, 9, fancy_compass, basic_compass,
           arrow1, arrow2, arrow3, star
           Default: 1a
            1a: Two color arrowhead
            1b: Two color arrowhead with circle
            2: Narrow with blending N
            3: Long with small arrowhead
            4: Inverted narrow inside a circle
            5: Triangle and N inside a circle
            6: Arrowhead and N inside a circle
            7a: Tall half convex arrowhead
            7b: Tall half concave arrowhead
            8a: Thin arrow in a circle
            8b: Fat arrow in a circle
            9: One color arrowhead
            fancy_compass: Fancy compass
            basic_compass: Basic compass
            arrow1: Simple arrow
            arrow2: Thin arrow
            arrow3: Fat arrow
            star: 4-point star

       at=x,y
           Screen coordinates of the rectangle’s top-left corner
           (0,0) is lower-left of the display frame
           Options: 0-100
           Default: 85.0,15.0

       rotation=float
           Rotation angle in degrees (counter-clockwise)
           Default: 0

       label=string
           Displayed letter on the top of arrow
           Default: N

       color=name
           Line color
           Either a standard color name, R:G:B triplet, or "none"
           Default: black

       fill_color=name
           Fill color
           Either a standard color name, R:G:B triplet, or "none"
           Default: black

       text_color=name
           Text color
           Either a standard color name or R:G:B triplet

       width=float
           Line width
           Default: 0

       fontsize=float
           Font size
           Options: 1-360
           Default: 14

DESCRIPTION

       d.northarrow displays a north  arrow  symbol  at  the  given  screen  coordinates.  If  no
       coordinates  are given it will draw the north arrow in the bottom right of the display. It
       can draw the north arrow in a number of styles (see the  wiki  page  for  details).   With
       certain  styles  of north arrow label ’N’ is displayed by default, and can be changed with
       option label, for example for different languages.  The label can be hidden with -t flag.

       North arrow can be rotated, for example to align with true north,  not  grid  north.   The
       angle  in degrees counter-clockwise (or radians with -r flag) can be specified with option
       rotation. Label is rotated together with the arrow, unless flag -w is specified.

EXAMPLES

       Display a north arrow symbol as a basic compas with label NORTH, rotated by 8 degrees with
       label, with black line and gray fill:
       d.mon wx0
       d.northarrow style=basic_compas rotation=8 label=NORTH -w color=black fill_color=gray
       d.mon -r

SEE ALSO

        d.barscale, d.graph, d.grid, d.legend

AUTHOR

       Hamish Bowman, Department of Geology, University of Otago, New Zealand
       Improvements as part of GSoC 2016 by Adam Laza, CTU in Prague

       Last changed: $Date: 2016-05-25 01:54:02 +0200 (Wed, 25 May 2016) $

SOURCE CODE

       Available at: d.northarrow source code (history)

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       © 2003-2018 GRASS Development Team, GRASS GIS 7.4.0 Reference Manual